Percentage Calculator
Calculate a percentage of a number, percentage increase, and percentage decrease quickly and clearly.
1. What is X% of Y?
2. Percentage increase
3. Percentage decrease
How to calculate percentages
To find a percentage of a number, divide the percentage by 100 and multiply by the total number. For example, 20% of 150 equals 30.
To calculate percentage increase, subtract the original number from the new number, divide by the original number, and multiply by 100.
To calculate percentage decrease, subtract the new number from the original number, divide by the original number, and multiply by 100.
Examples
What is 15% of 200?
15% of 200 is 30.
What is the percentage increase from 80 to 100?
The increase is 25%.
What is the percentage decrease from 300 to 240?
The decrease is 20%.
Frequently asked questions
What if the original value is zero?
Percentage increase or decrease from zero cannot be calculated using the standard formula because it would require division by zero.
Can I use decimals?
Yes. This calculator supports decimal values.
Is this tool free?
Yes. It is free to use.